Technically these are for active duty US servicemen and families, but I'll leave it up to your individual conscience if you want to download them. I believe language should be a bridge between cultures and not subject to exclusionary behavior, but you be your own judge.

No credit card info needed to download these. Just enter the promo code at checkout and you can download them free. Perhaps if you share this with a soldier, contractor, etc. who needs to work in Afghanistan that will justify the download.